i found this http://www.smithy.com/cnc-reference-info/chapter-5/m52/page/7
to stop m52 p1 is m53 On Sun, Jul 20, 2014 at 8:47 PM, a k <pccncmach...@gmail.com> wrote: > Hi > i did change direction on which motor move - by adding - at front > input_scale and output_scale. now i move axis away from home switch by jog > negative. > thanks for help. > after that change i even could program in mdi > g1 g91 y-2. f2. > and machine actually did move. > > than i enter M52 P1 into MDI > question: is M52 modal ? if i enable adaptive feed than how i can to > disable it (M52) ? > or just restart emc2 ? > Now situation is that when program g1 g91 y-2. f2. > i have instantly 2 error > linear move in mdi would exceed joint 0's positive limit > linear move in mdi would exceed joint 2's positive limit > > what means error comes from axis that not programmed to move at all. > i did try program axis x to move and error was - from remaining 2 axis > > something interesting > > thanks > aram > > > > > > > > > > > > > On Sun, Jul 20, 2014 at 7:25 AM, Dave Cole <linuxcncro...@gmail.com> > wrote: > >> If you use Servos, then you need to swap both inputscale and output >> scale signs to reverse motor direction or else the motor command will >> fight the encoder feedback. If your motor is running backwards to >> the encoder, you can either change the wiring or change the sign of >> either the inputscale or the outputscale to get them into sycn. >> >> If you use Steppers, you normally don't have encoder feedback, so no >> such issue. >> >> I think that Aram is using servos since he has a Mesa servo interface >> board. >> >> Dave >> >> >> On 7/20/2014 9:39 AM, Gene Heskett wrote: >> > On Sunday 20 July 2014 07:14:27 Viesturs Lācis did opine >> > And Gene did reply: >> >> 2014-07-20 6:28 GMT+03:00 a k <pccncmach...@gmail.com>: >> >>> in 2.5.4 machine can use only positive number for INPUT_SCALE >> >>> i am right here? >> >> No, you are not. >> >> The trick is in keeping the same sign for "input scale" AND "output >> >> scale". If you add "minus" in front of input, you should do the same >> >> for output as well. >> >> >> >> Viesturs >> > No reason to Viesturs. Neither of my machines follow that convention >> 100%. >> > I use OUTPUT_SCALE's - sign to reverse the direction of the motor if I >> > managed to wire it (a stepper) wrong, and dri direction is (I think) >> made >> > to match by the INPUT_SCALE. But I don't recall having to do that so >> far. >> > My lathe doesn't even have an INPUT_SCALE, and the neither has the mill >> > for its last 3 or 4 configs. All configs now in use are using only >> SCALE, >> > no in or out specified. >> > >> >> ----------------------------------------------------------------------- >> >> ------- Want fast and easy access to all the code in your enterprise? >> >> Index and search up to 200,000 lines of code with a free copy of Black >> >> Duck Code Sight - the same software that powers the world's largest >> >> code search on Ohloh, the Black Duck Open Hub! Try it now. >> >> http://p.sf.net/sfu/bds >> >> _______________________________________________ >> >> Emc-users mailing list >> >> Emc-users@lists.sourceforge.net >> >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > >> > Cheers, Gene Heskett >> >> >> ------------------------------------------------------------------------------ >> Want fast and easy access to all the code in your enterprise? Index and >> search up to 200,000 lines of code with a free copy of Black Duck >> Code Sight - the same software that powers the world's largest code >> search on Ohloh, the Black Duck Open Hub! Try it now. >> http://p.sf.net/sfu/bds >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
